Prolly wont know something for a little while...
Obviously it looked like his knee.
Knees can be complicating ,XRays & MRI's.
Hopefully nothing is torn or broke and he just tweaked/sprained it with no real damage.
Sometimes a sprain can be more painful then a mild break.
Keep your fingers crossed guys!

Nothing about what happened to Reedy tonight is funny, you fucked up morons. After that insane crash last year in the Nationals, he got his fitness and confidence back up to literally be running down 'Poto and now this brutal crash tonight? He has put it all on his TwoTwo race team and did everything right, and now this.

Dunno how you clowns can muster up a joke when you look at the scope of what most likely happened just now.

Nothing about what happened to Reedy tonight is funny, you fucked up morons. After that insane crash last year in the Nationals, he got his fitness and confidence back up to literally be running down 'Poto and now this brutal crash tonight? He has put it all on his TwoTwo race team and did everything right, and now this.

Dunno how you clowns can muster up a joke when you look at the scope of what most likely happened just now.

Well said Racer92. Chad has put his life and soul into that team and doesn't deserve these f@#&ed up comments. Dude has heart.

Nothing about what happened to Reedy tonight is funny, you fucked up morons. After that insane crash last year in the Nationals, he got his fitness and confidence back up to literally be running down 'Poto and now this brutal crash tonight? He has put it all on his TwoTwo race team and did everything right, and now this.

Dunno how you clowns can muster up a joke when you look at the scope of what most likely happened just now.

Nothing about what happened to Reedy tonight is funny, you fucked up morons. After that insane crash last year in the Nationals, he got his fitness and confidence back up to literally be running down 'Poto and now this brutal crash tonight? He has put it all on his TwoTwo race team and did everything right, and now this.

Dunno how you clowns can muster up a joke when you look at the scope of what most likely happened just now.

Nothing about what happened to Reedy tonight is funny, you fucked up morons. After that insane crash last year in the Nationals, he got his fitness and confidence back up to literally be running down 'Poto and now this brutal crash tonight? He has put it all on his TwoTwo race team and did everything right, and now this.

Dunno how you clowns can muster up a joke when you look at the scope of what most likely happened just now.

Total computard guess, but from the way his bike pulled him from the lower leg over that last bump when it settled I'm going to say classic ACL. Whatever it is I'm hoping it's clean with no lasting deficits. Then I'm hoping TwoTwo will find a replacment rider for his crew to support; and while I'm hoping, what I really hope is that Chad just walks it off and lines up next week.